| Competition: | First League of the Republika Srpska |
| Season: | 2015–16 |
| Winners: | Krupa 1st First League title |
| Promoted: | Krupa |
| Relegated: | Mladost (VO) Leotar Sloboda (NG) Drina HE Vlasenica |
| Matches: | 192 |
| Total Goals: | 516 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
The 2015–16 First League of the Republika Srpska was the twenty-first season of the First League of the Republika Srpska, the second tier football league of Bosnia and Herzegovina, since its original establishment and the fourteenth as a second-tier league.